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https://github.com/RGBCube/serenity
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9132596b8e
This will somwhat help unify them also under the same SysFS directory in the commit. Also, it feels much more like this change reflects the reality that both ACPI and the BIOS are part of the firmware on x86 computers.
41 lines
1 KiB
C++
41 lines
1 KiB
C++
/*
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* Copyright (c) 2020-2021, Liav A. <liavalb@hotmail.co.il>
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* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <Kernel/CommandLine.h>
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#include <Kernel/Firmware/ACPI/Parser.h>
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#include <Kernel/Memory/TypedMapping.h>
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#include <Kernel/Sections.h>
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namespace Kernel::ACPI {
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UNMAP_AFTER_INIT void initialize()
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{
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auto feature_level = kernel_command_line().acpi_feature_level();
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if (feature_level == AcpiFeatureLevel::Disabled)
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return;
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auto rsdp = StaticParsing::find_rsdp();
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if (!rsdp.has_value())
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return;
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auto facp = StaticParsing::find_table(rsdp.value(), "FACP");
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if (!facp.has_value())
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return;
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auto facp_table = Memory::map_typed<Structures::FADT>(facp.value());
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u8 irq_line = facp_table->sci_int;
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Parser::must_initialize(rsdp.value(), facp.value(), irq_line);
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if (kernel_command_line().acpi_feature_level() == AcpiFeatureLevel::Enabled)
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Parser::the()->enable_aml_parsing();
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}
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bool is_enabled()
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{
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return Parser::the();
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}
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}
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